/Engine/Source/Runtime/Engine/Public/MaterialHLSLTree.h
FExpressionTextureSample ( const [FExpression](API\Runtime\Engine\HLSLTree\FExpression) * InTextureExpression, const [FExpression](API\Runtime\Engine\HLSLTree\FExpression) * InTexCoordExpression, const [FExpression](API\Runtime\Engine\HLSLTree\FExpression) * InMipValueExpression, const [FExpression](API\Runtime\Engine\HLSLTree\FExpression) * InAutomaticMipBiasExpression, const [FExpressionDerivatives](API\Runtime\Engine\HLSLTree\FExpressionDerivatives) & InTexCoordDerivatives, ESamplerSourceMode InSamplerSource, ETextureMipValueMode InMipValueMode )